Several historic workins, all within 10 square kilometres, produced exceptionally high silver values. High silver grades were confirmed by drilling at the Mountain Boy Mine in 2006 and 2007. Intermediate epithermal mineralization on the property consists of eleven minor veins tested with underground adits, trenches, open cuts and diamond drilling. The mineralization occurs within veins and replacements that are up to 15 metres thick consisting of mainly barite, quartz, jasper, carbonate and sulphide with local native silver. Acanthite (silver sulphide) and stromeyerite (silver-copper sulphide) have been identified in veinlets, stringers and lenses in the high-grade and No. 3 veins, giving rise to bonanza-style grades. A second style of structurally controlled vein mineralization consists of mainly quartz, calcite, ankerite, barite and sulphide grading into zones of brecciated stockwork. Veins are typically layered with colloform banding, bladed barite and calcite suggesting multiple hydrothermal pulses and evidence of boiling.
U-Pb zircon geochronology has confirmed the presence of a Jurassic aged porphyritic intrusion in the valley bottom below the mines. Lead isotope data from the MB Ag veins confirm the Jurassic age of mineralization. The current exploration model consists of an extensive hydrothermal mineralizing system radiating from the Jurassic intrusion resulting in structurally controlled, zoned epithermal mineralization. Epithermal vein deposits generally have many mineralised ore shoots along multiple structures. It is speculated that high grade silver-base metal mineralization high in the system may transition into a gold-copper rich zone deeper in the system. Exploration going forward will follow fertile structures both along strike and down dip.
The Mountain Boy area was explored in the early 1900’s by way of adits developed along the high-grade silver veins. Several tonnes of material were transported by pack horses from the mine at 900 metres elevation to the valley and then 25 kilometres to Stewart, for shipment to a smelter. Mountain Boy acquired the property in 2005 and conducted drilling in 2006 and 2007. Results of the drilling included DDH-MB-2006-10 which yielded 5.18 metres of 5,258 g/t silver and DDH-MB-2006-19 which yielded 6.10 metres of 2,260 g/t silver along with credits for lead, zinc and copper.
From 1902, when the claims were originally staked, to 1940 the claims were intermittently tunnelled for high grade ore. Several small shipments of ore were produced. In 1974 the claims reverted to the Crown and in 1976 R. Shumacher carried out underground sampling in the Mann tunnel. The first reported drill program took place in 1983, when Pride Resources carried out a small, 3 hole drill campaign. An access road was built by Ranmar Ventures Ltd in 1998 to help facilitate their exploration efforts. From 2000 to 2011, four small diamond drill programs were executed. Each of these campaigns was successful in intersecting economic intervals of silver mineralization. Since 2016 there have been several prospecting and geochemical sampling programs and in 2019 a mapping, prospecting and sampling program took place.
|Ownership||Option to earn 100%, 2.5% NSR (5% buyback $1M)|
Intermediate epithermal and shear-hosted gold-silver mineralization on the property make up 15 known showings. Mineralization consists of veins and replacements tested with grab samples and trenches. Targets is interpreted to be part of the same mineralizing system as the MB Silver Property immediately to the south.
Historically, the property was subdivided into three zones, the Maybee, Lucky Jim and Ruby zones. Each of the zones are host to several mineralized veins. These veins are interpreted to be part of a larger system, that consists of an intermediate epithermal system that extends several kilometers along the American Creek corridor. This part of the mineralized system has been tested with grab samples and limited trenching.
The Maybee vein is the most prominent vein on the property and consists of bands of massive galena, sphalerite, and pyrite in a quartz-carbonate-barite gangue. The veins pinch and swell over 45m down a cliff face and are separated in some locations by large quartz, barite and jasper veins. Reported chip sampling of the vein consisted of 29 samples that outlined a zone 45m long and up to 4.5m wide averaging 0.38% copper, 7.23% lead, 1.80% zinc and 88.33g/t silver. Veins have been found to the north of the Maybee vein and are believed to be part of the same vein.
The Lucky Jim zone contains the Joven vein, Maurice zone, Argen zone, the Akash vein, the Gurjaan showing and Jesse showing. This zone covers a large area with showings throughout.
The Ruby zone covers the lower slopes in the south of the property and includes Damon, Jewelry Box and Peacock veins.
Prospecting began in the Portland Canal area around 1898 and moved northward into the American Creek area. The earliest recorded exploration was in the years 1904 and 1905. It consisted of stripping, open cutting, 63 feet of trenching and construction of a 15-foot exploration adit in the Ruby area and 4 trenches totalling 80 feet in the Maybee area.
Although intermittent exploration had occurred over the years, the next recorded exploration was not till 1990 when Teuton Resources acquired the claims. Subsequent prospecting and rock sampling programs led to the discovery of many of the other veins on the property as well as chip sampling the Maybee vein. Results include up to 0.244 oz/ton gold, 8.14% lead and 5.24% zinc from old trenches (sample JM-R-4). In 2000, a report authored by D.K. Bragg mentions silver assays of 771.26 oz/ton, combined lead/zinc up to 65% and gold values as high as 1.893 oz/ton from grab samples. Unfortunately, the locations of the grab samples remain unknown.
In 2012, Gulzara Resources acquired the claims and have conducted four prospecting programs on the property attempting to locate and sample all previously discovered mineralized veins. They have channel sampled and composite chip sampled many of the historic showings.
In 2019, Mountain Boy entered into the current option agreement and spent 24 man-days mapping and prospecting the Dorothy property.
|Ownership||100% owned, 2% NSR (1% buyback for $1M)|
Mineralization on the Silver Crown property consists of polymetallic Ag-Au-Pb-Zn veins and breccia in a gangue of quartz, calcite, ankerite and barite. Mineralization occurs in structures within the Hazelton volcano-sedimentary package associated with fine grained hornblende porphyry dykes of Eocene age that are part of the Portland Canal dyke swarm. The property is in close proximity to several historic mines including the following;
The current exploration model recognizes two potential mineralizing episodes. The first is related to Jurassic oceanic arc volcanism fed by the Texas Creek intrusions including the Premier Porphyry. Hydrothermal activity during this period is responsible for epithermal gold-silver-base metal deposits and historic mines in the area including the Premier and Big Missouri mines. The second model is high grade silver-gold-base metal veins related to brittle deformation and emplacement of generally north-northwest striking Eocene dyke swarms. Lead isotope data confirms the Spider mine is part of the younger Eocene mineralization.
The newly discovered Wolfmoon appears to be on strike with many of the showings immediately west of the claims. Its spatial relationship with Eocene dykes suggests it is also related to the younger Eocene mineralization.
Receding glaciers and detailed geological mapping of the newly consolidated American Creek West ground in 2019 led to the discovery of the Wolfmoon and Crown Ridge Zones. Mineralization at Wolfmoon occurs within a north-northwesterly striking structural corridor which has so far been traced for 450 metres. Wolfmoon is a very significant discovery, as it contains both high-grade gold and silver in the same zone. The Crown Ridge Zone occurs 1.4 kilometres north of Wolfmoon at a similar elevation, near the top of Bear River Ridge. Chalcedony occurs within many of the veins suggesting the zone represents the upper levels of an epithermal system.
After the 1919 discovery and subsequent exploration of the famous Premier mine, located 6.5 km southwest of the Silver Crown property, the surrounding region was intensively prospected. In 1965, D. Collison discovered polymetallic vein mineralization over a strike length of 450m, at the edge of the receding glacier along the western boundary of the current Silver Crown claims. This showing eventually became known as the Silver Crown. Teuton Resources acquired the property in the early 1980’s and did some minor prospecting. In 1987 an airborne survey was carried out over the claims. In the late 1980’s and 1990’s, White Channel Resources and Navarre Resources conducted exploration on ground immediately west of the Silver Crown property on what has become known as the Silver Crown, Slippery Ian, Iron Cap, Lois and Spider showings. Work included soil geochemistry, ground VLF-EM, DEEP-EM and magnetometer geophysics, trenching, geologic mapping and diamond drilling. High-grade Ag-Au-Pb-Zn veins and breccia were encountered in this work. In 2006, Teuton Resources flew a helicopter-borne AeroTEM II electromagnetic and magnetic survey over the property.
In 2018, Mountain Boy entered into the current option agreement and spent 28 man-days mapping and prospecting the property in 2019. The Wolfmoon showing was discovered at this time. The showing is believed to be an extension of the Silver Crown and related showings to the west, Assays of up to 8.44 grams per tonne gold, 1,200 grams per tonne silver, 13.2% lead and 4.28% zinc were returned from initial grab samples in the area. The showing trends north-northwest and has been traced for 400 metres.